org.jpos.qi.sysconfig.SysConfigHelper.java Source code

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Here is the source code for org.jpos.qi.sysconfig.SysConfigHelper.java

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/*
 * jPOS Project [http://jpos.org]
 * Copyright (C) 2000-2018 jPOS Software SRL
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package org.jpos.qi.sysconfig;

import com.vaadin.data.Binder;
import org.jpos.ee.BLException;
import org.jpos.ee.DB;
import org.jpos.ee.SysConfig;
import org.jpos.ee.SysConfigManager;
import org.jpos.qi.QI;
import org.jpos.qi.QIHelper;

import javax.persistence.NoResultException;
import java.util.*;
import java.util.stream.Stream;

public class SysConfigHelper extends QIHelper {
    private String prefix;

    public SysConfigHelper(String prefix) {
        super(SysConfig.class);
        this.prefix = prefix;
    }

    public SysConfig getSysConfig(String param) {
        try {
            return (SysConfig) DB.exec((db) -> {
                SysConfigManager mgr = new SysConfigManager(db, prefix);
                return mgr.getItemByParam("id", param, false);
            });
        } catch (NoResultException nr) {
            return null;
        } catch (Exception e) {
            QI.getQI().getLog().error(e);
            return null;
        }
    }

    @Override
    public boolean updateEntity(Binder binder) throws BLException {
        try {
            return (boolean) DB.execWithTransaction((db) -> {
                SysConfig oldSysConfig = (SysConfig) ((SysConfig) getOriginalEntity()).clone();
                binder.writeBean(getOriginalEntity());
                SysConfig s = (SysConfig) getOriginalEntity();
                //need to re-set prefix to id as it gets deleted on write
                s.setId(addPrefix(s.getId()));
                db.session().merge(s);
                return addRevisionUpdated(db, getEntityName(), String.valueOf(s.getId()), oldSysConfig, s,
                        new String[] { "value" });
            });
        } catch (Exception e) {
            QI.getQI().getLog().error(e);
            return false;
        }
    }

    @Override
    public boolean saveEntity(Binder binder) throws BLException {
        SysConfig entity = (SysConfig) getOriginalEntity();
        if (binder.writeBeanIfValid(getOriginalEntity())) {
            String id = entity.getId();
            id = prefix != null ? prefix + id : id;
            if (getSysConfig(id) == null) {
                final String finalId = id;
                try {
                    return (boolean) DB.execWithTransaction((db) -> {
                        SysConfigManager mgr = new SysConfigManager(db, prefix);
                        mgr.put(entity.getId(), entity.getValue());
                        addRevisionCreated(db, "SYSCONFIG", finalId);
                        return true;
                    });
                } catch (Exception e) {
                    QI.getQI().getLog().error(e);
                    return false;
                }
            } else {
                throw new BLException("SysConfig " + id + " already exists.");
            }
        } else {
            throw new BLException("Invalid SysConfig");
        }
    }

    @Override
    public Stream getAll(int offset, int limit, Map<String, Boolean> orders) throws Exception {
        return ((List<SysConfig>) DB.exec(db -> {
            SysConfigManager mgr = new SysConfigManager(db, prefix);
            return mgr.getAll(offset, limit, orders);
        })).stream();

    }

    @Override
    public int getItemCount() throws Exception {
        return (int) DB.exec(db -> {
            SysConfigManager mgr = new SysConfigManager(db, prefix);
            return mgr.getItemCount();
        });
    }

    @Override
    public String getItemId(Object item) {
        return ((SysConfig) item).getId();
    }

    public String addPrefix(String value) {
        return value.startsWith(prefix) ? value : prefix + value;
    }

}